| SMSalamon Manufacturing, INC. | New Britain | CT | — | ◇ UNVERIFIED |
| SMSalco Machine, INC. | Louisville | OH | — | ◇ UNVERIFIED |
| SHSalem Heating & Sheet Metal INC | Salem | OR | — | ◇ UNVERIFIED |
| SHSalem Heating & Sheet Metal INC | Dallas | OR | — | ◇ UNVERIFIED |
| SHSalem Heating & Sheet Metal INC | Salem | OR | — | ◇ UNVERIFIED |
| SHSalem Heating & Sheet Metal INC | Salem | OR | — | ◇ UNVERIFIED |
| SHSalem Heating & Sheet Metal INC | Salem | OR | — | ◇ UNVERIFIED |
| SCSam-duk CORP | Tamuning | GU | — | ◇ UNVERIFIED |
| SMSamson Metal and Machine, Inc. | Lakeland | FL | — | ◇ UNVERIFIED |
| SPSamuel Pressure Vessel Group | Tomahawk | WI | — | ◇ UNVERIFIED |
| SSSan-co Steel, LTD | Donna | TX | — | ◇ UNVERIFIED |
| SESandberg Enterprises, INC. | Mapleville | RI | — | ◇ UNVERIFIED |
| SMSandidge Machine Shop INC. | Dalton | GA | — | ◇ UNVERIFIED |
| SHSandy Hook Machine Shop | Sandy Hook | MS | — | ◇ UNVERIFIED |
| SMSan Mateo, INC. | Bensenville | IL | — | ◇ UNVERIFIED |
| SCSanmina CORP | Newark | CA | — | ◇ UNVERIFIED |
| SCSanmina Corporation | Fremont | CA | — | ◇ UNVERIFIED |
| SSSanmina - Sci | Livermore | CA | — | ◇ UNVERIFIED |
| SSanmina-sci | Westbrook | ME | — | ◇ UNVERIFIED |
| SCSanta Clara Campus Property Owner LLC | Santa Clara | CA | — | ◇ UNVERIFIED |
| SFSanta Fe Custom Works LLC | Albuquerque | NM | — | ◇ UNVERIFIED |
| SFSanta Fe Enameling & Metal Finishing CO | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| SMSantee Metal Works LLC | Littleton | CO | — | ◇ UNVERIFIED |
| SISaqaf Inc. | Dallas | TX | — | ◇ UNVERIFIED |
| SMSarduccis Metal Works, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| SISarelle Industries INC | Rogers | MN | — | ◇ UNVERIFIED |
| SISatterfield INC. | Alexander City | AL | — | ◇ UNVERIFIED |
| SBSaturn Bronze, INC. | Mcmechen | WV | — | ◇ UNVERIFIED |
| SISaulsbury Industries INC | Clackamas | OR | — | ◇ UNVERIFIED |
| SMSault Machine Works | Sault Sainte Marie | MI | — | ◇ UNVERIFIED |
| SESavage Enterprises LLC | Omaha | NE | — | ◇ UNVERIFIED |
| SCSavannah Company | Waunakee | WI | — | ◇ UNVERIFIED |
| SISbpj INC. D/b/a Damar Manufacturing | Tulsa | OK | — | ◇ UNVERIFIED |
| SISbs Industries | Tulsa | OK | — | ◇ UNVERIFIED |
| SSScafco Steel Stud Manufacturing | Stockton | CA | — | ◇ UNVERIFIED |
| SSScf Specialty Fabricators, INC. | Calera | AL | — | ◇ UNVERIFIED |
| SMSchaffer Machine INC | Brandon | MN | — | ◇ UNVERIFIED |
| SSSchaffer Specialty Welding, INC. | Milltown | WI | — | ◇ UNVERIFIED |
| SMSchaffner Machine CO. | Berkeley | MO | — | ◇ UNVERIFIED |
| SISchake Ind/oil City | Oil City | PA | — | ◇ UNVERIFIED |
| SLSchearerspeed LLC | Reading | PA | — | ◇ UNVERIFIED |
| SCSchefers Construction Services INC. | Grain Valley | MO | — | ◇ UNVERIFIED |
| SFSchetchl Fab LLC | Newark | NJ | — | ◇ UNVERIFIED |
| SLSchilson Legacy Properties LLC | Goodyear | AZ | — | ◇ UNVERIFIED |
| SISchmidt Industries INC | Bay City | MI | — | ◇ UNVERIFIED |
| SMSchmidt Manufacturing INC | Alexandria | MN | — | ◇ UNVERIFIED |
| SMSchmidt-riffer Metalcrafts, INC. | Kansas City | MO | — | ◇ UNVERIFIED |
| SSSchneider Simpson Sheet Metal | Tacoma | WA | — | ◇ UNVERIFIED |
| SESchram Enterprises, INC. | Melrose Park | IL | — | ◇ UNVERIFIED |
| SISchuette, Inc. | Rothschild | WI | — | ◇ UNVERIFIED |
| SMSchultz Mfg INC | Oregon City | OR | — | ◇ UNVERIFIED |
| SPSchutz Precision Machining LLC | Salem | UT | — | ◇ UNVERIFIED |
 Schwoeppe Machine & Tool | Marthasville | MO | — | ◇ UNVERIFIED |
| SEScientific Engineering, INC. I | Salina | KS | — | ◇ UNVERIFIED |
| SRScientific Research CO | Portland | OR | — | ◇ UNVERIFIED |
| SRScientific Research CO | Portland | OR | — | ◇ UNVERIFIED |
| STScientific Tool, INC. | New Stanton | PA | — | ◇ UNVERIFIED |
| SIScmg, INC. | Florence | AL | — | ◇ UNVERIFIED |
| SIScoggins Industrial Inc | Sharpsburg | NC | — | ◇ UNVERIFIED |
| SWScoggins Welding & Machine Shop | Petal | MS | — | ◇ UNVERIFIED |
| STScotia Tool and Machine INC. | San Leandro | CA | — | ◇ UNVERIFIED |
| SCScott C. McKenzie | San Jose | CA | — | ◇ UNVERIFIED |
| SEScreaming Eagle Machine Corp. | West Springfield | MA | — | ◇ UNVERIFIED |
| SMScreed Master Products INC | El Cajon | CA | — | ◇ UNVERIFIED |
| SMScrew Machine CO of Elkhorn | Elkhorn | WI | — | ◇ UNVERIFIED |
| SAScroggins a 1 Repair | Troy | AL | — | ◇ UNVERIFIED |
| SSScs Sheet Metal | Grain Valley | MO | — | ◇ UNVERIFIED |
| SDS&D Developing Company, LLC | Kent | WA | — | ◇ UNVERIFIED |
| SMSds Machining INC | Clackamas | OR | — | ◇ UNVERIFIED |
| STSeal Tite LLC | Hillsboro | OH | — | ◇ UNVERIFIED |
| SCSeattle City Mercer Corridor | Seattle | WA | — | ◇ UNVERIFIED |
| SCSechrist-hall CO | Corpus Christi | TX | — | ◇ UNVERIFIED |
| SMSeco Machine | North Canton | OH | — | ◇ UNVERIFIED |
| SDSecondary Development and Research, INC. | Ridgway | PA | — | ◇ UNVERIFIED |
| SSSecondary Solutions, Inc. | Rockford | IL | — | ◇ UNVERIFIED |
| SMSedalia Machine Works Inc.* | Sedalia | MO | — | ◇ UNVERIFIED |
| SCSeelye Craftsman CO | Minneapolis | MN | — | ◇ UNVERIFIED |
| SISelecsource, INC. | Suwanee | GA | — | ◇ UNVERIFIED |
| SISematco, INC. | Roanoke | VA | — | ◇ UNVERIFIED |
| SDSemco Duct and Acoustical Products, INC. | Roanoke | VA | — | ◇ UNVERIFIED |
| SISemco Incorporated | Roanoke | VA | — | ◇ UNVERIFIED |
| SISemco Incorporated | Morrilton | AR | — | ◇ UNVERIFIED |
| SPSemco Precision, INC. | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| SSSemco Southeastern Metals | Jacksonville | FL | — | ◇ UNVERIFIED |
| SPSemon Production Machining, Inc., Doug | Shreveport | LA | — | ◇ UNVERIFIED |
| SCSenju Comtek Corporation | San Jose | CA | — | ◇ UNVERIFIED |
| SWSensor Werks | Columbus | OH | — | ◇ UNVERIFIED |
| SPSerbin Precision Machining LLC | Saint Peters | MO | — | ◇ UNVERIFIED |
| SMSerley Manufacturing Company INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| SCSerra CORP. | Nevada City | CA | — | ◇ UNVERIFIED |
| SLSerra Laser Precision, LLC | Libertyville | IL | — | ◇ UNVERIFIED |
| SISerrano Industries | El Paso | TX | — | ◇ UNVERIFIED |
| SGService Grinding & Sharpening INC | Blaine | MN | — | ◇ UNVERIFIED |
| SMService Metal Fabricating INC | Rockaway | NJ | — | ◇ UNVERIFIED |
| SPService Partners Gutter Supply LLC | Jackson | TN | — | ◇ UNVERIFIED |
| SPServitech Precision Machining Corporation | Baldwin Park | CA | — | ◇ UNVERIFIED |
| SWSetzers Welding and Manufacturing | Beatrice | NE | — | ◇ UNVERIFIED |
| SPSeven Peaks, LLC & Bratek Engineering & Manufacturing, Inc. | Denver | CO | — | ◇ UNVERIFIED |
| SMSewell Machine Shop | Dallas | GA | — | ◇ UNVERIFIED |
| SESeychelle Environmental Technologies | San Juan Capistrano | CA | — | ◇ UNVERIFIED |
